High-voltage current-limiting fuses are suitable for AC 50HZ, rated voltage 3.6-12KV systems, and can also be used in conjunction with other electrical appliances (such as switches, contactors, etc.) as overload or short-circuit protection for electrical equipment such as motors, transformers, and capacitors, etc. Protect.
The technical conditions of the product comply with British (BS) standards, German (DIN) standards, and International Electrotechnical Commission (IEC) standards, and have passed all performance tests.
Chinese name: high voltage current limiting fuse
Applicable to: AC 50HZ voltage 3.6 ~ 12KV system
Function: Overload or short circuit protection of electrical equipment
Main features: high breaking capacity
High breaking capacity: The rated breaking current of the product is 40KA～50KA. Small power loss: ensure that the product has a low temperature rise, which is more beneficial when the fuse is used in a fully enclosed insulation device. Low arc voltage: During the breaking process, the arc voltage is low, and when it is used in a system with a voltage lower than the rated voltage, the arc voltage will be further reduced, so that the 12KV fuse can be used in a 12KV or 7.2KV system without damaging the system insulation danger. Small characteristic curve error: the time-current characteristic curve error is less than ± 10%, which ensures the reliability of the product. Specification standardization: The rated parameters of the product conform to the R10 and R20 series of the International Electrotechnical Commission (IEC) standard. There are two types of wiring:
（1），Busbar type, the overall dimensions conform to the British (BS) standard;
（2），Plug-in type, the dimensions conform to the German (DIN) standard;
Moreover, all comply with the International Electrotechnical Commission (IEC) standard. The busbar type can be directly fastened to the busbar with screws, which has the advantages of small installation volume and reliable contact; while the plug-in type is easy to replace and can be operated with electricity.
Can be equipped with an impactor: the tungsten wire connected in parallel with the melt can melt within a few thousandths of a second when the arc just starts, detonating the gunpowder device. The firing pin operated by a small amount of gunpowder acts immediately and gives a signal with sufficient energy to make other electrical appliances act or provide an interlock. The output energy of the fuse striker conforming to the British (BS) standard is (1~3) joules, and the output energy of the fuse striker conforming to the German (DIN) standard is (2~5) joules.